Using Hushmail Mobile (m.hush.com) is similar to using Hushmail. Sensitive encryption operations take place on our servers, and the connection between our server and your mobile phone is secured using SSL.
Hushmail Mobile uses bookmarkable URLs (such as https://firstname.lastname@example.org/folder/INBOX) to speed up navigation on mobile devices. If you are concerned about exposing your email address in your URL history, clear your browser’s history and cache regularly.
Just like in regular Hushmail, always sign out at the end of your session.